copper leaching behavior from waste printed circuit
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copper leaching behavior from waste printed circuit

Leaching behavior of copper from waste printed

2014-2-1 · In this work, a Brønsted acidic ionic liquid, 1-butyl-3-methyl-imidazolium hydrogen sulfate ([bmim]HSO 4), was used to leach copper from waste printed circuit boards (WPCBs, mounted with electronic components) for the first time, and the leaching behavior of copper was discussed in detail.The results showed that after the pre-treatment, the metal distributions were different with the particle ...

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Copper Leaching Behavior from Waste Printed Circuit

Copper Leaching Behavior from Waste Printed Circuit Board in Ammoniacal Alkaline Solution Kazuya Koyama 1, Mikiya Tanaka and Jae-chun Lee2 1Metals Recycling Group, Research Institute for Environmental Management Technology, National Institute of Advanced Industrial Science and Technology (AIST), Tsukuba 305-8569, Japan

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Copper Leaching Behavior from Waste Printed Circuit

In order to experimentally explore the feasibility of the leaching stage in this process, the copper leaching behavior from a printed circuit board (PCB) in ammoniacal alkaline solutions has been investigated under a nitrogen atmosphere. Copper in PCB was oxidized by Cu(II) to form Cu(I)-ammine complex ions.

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Leaching behavior of copper from waste printed

Leaching behavior of copper from waste printed circuit boards with Brønsted acidic ionic liquid. Huang J(1), Chen M(2), Chen H(1), Chen S(1), Sun Q(1). Author information: (1)Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China.

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Copper Leaching Behavior from Waste Printed Circuit Board ...

2013-9-26 · The oxidation-reduction Copper Leaching Behavior from Waste Printed Circuit Board in Ammoniacal Alkaline Solution 1791 Leaching (%) Potential, E / mV vs SHE Leaching (%) 100 400 100 80 300 60 200 40 100 20 0 0 012345 Time, t / h Fig. 5 Time variation of

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Leaching kinetics of copper from waste printed circuit ...

2011-5-1 · The leaching behavior of metals such as copper, zinc, lead and tin from waste printed circuit boards (PCBs) has been investigated using electro-generated chlorine in hydrochloric acid solution.

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Leaching kinetics of copper from waste printed circuit ...

2011-6-1 · Leaching kinetics of copper from waste printed circuit boards by electro-generated chlorine in HCl solution Eun-young Kima, Min-seuk Kimb, Jae-chun Leeb,⁎, Jinki Jeongb, B.D. Pandeyb,c a Dept. Material Science & Engineering, Pennsylvania State University, University Park 16802, PA, United States b Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources (KIGAM ...

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Copper Leaching Behavior from Waste Printed Circuit

Copper Leaching Behavior from Waste Printed Circuit Board in Ammoniacal Alkaline Solution Koyama Kazuya , Tanaka Mikiya , Lee Jae-chun MATERIALS TRANSACTIONS 47(7), 1788-1792, 2006

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Selective leaching of copper from waste printed circuit ...

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Extraction of copper and the co-leaching behaviour of ...

Extraction of copper and the co-leaching behaviour of other metals from waste printed circuit boards using alkaline glycine solutions. Resources, Conservation and Recycling. 154: ARTN 104624.

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Leaching behavior of copper from waste printed

Leaching behavior of copper from waste printed circuit boards with Brønsted acidic ionic liquid. Jinxiu Huang Key Laboratory of Solid Waste Treatment and Resource Recycle, Ministry of Education, Southwest University of Science and Technology, Mianyang 621010, China.

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Leaching kinetics of copper from waste printed circuit ...

2011-6-1 · Leaching kinetics of copper from waste printed circuit boards by electro-generated chlorine in HCl solution Eun-young Kima, Min-seuk Kimb, Jae-chun Leeb,⁎, Jinki Jeongb, B.D. Pandeyb,c a Dept. Material Science & Engineering, Pennsylvania State University, University Park 16802, PA, United States b Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources (KIGAM ...

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LEACHING OF METALS FROM WASTE PRINTED CIRCUIT

2015-1-10 · Copper leaching was increased for sulfuric acid concentrations up to 1.2 mol/L and hydrogen peroxide concentrations of 10.0 ... its leaching behavior was investigated in detail with regards to the process parameters. The use of ... Leaching of metals from waste printed circuit boards (WPCBs) using sulfuric and nitric acids 2603

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Copper Leaching Behavior from Waste Printed Circuit

Copper Leaching Behavior from Waste Printed Circuit Board in Ammoniacal Alkaline Solution Koyama Kazuya , Tanaka Mikiya , Lee Jae-chun MATERIALS TRANSACTIONS 47(7), 1788-1792, 2006

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Leaching behavior of copper from waste printed

• The leaching process can be modeled with shrinking core model, and the E{sub a} was 25.36 kJ/mol. - Abstract: In this work, a Brønsted acidic ionic liquid, 1-butyl-3-methyl-imidazolium hydrogen sulfate ([bmim]HSO{sub 4}), was used to leach copper from waste printed circuit boards (WPCBs, mounted with electronic components) for the first ...

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Copper Sludge from Printed Circuit Board Production ...

2019-12-12 · The fast development of electronic industries and stringent requirement of recycling waste electronics have produced a large amount of metal-containing waste sludge. This study developed a waste-to-resource strategy to beneficially use such metal-containing sludge from the production and recycling processes of printed circuit board (PCBs). To observe the metal incorporation mechanisms

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[PDF] Copper Extraction from the Discarded Printed

This project deals with the experimental results of the leaching of Cu from Printed Circuit Boards (PCB) from obsolete electronic devices by means of leaching using different combinations of acidic mixtures followed by precipitation. Printed circuit boards were dismantled, cut into small pieces, and fed into a Ball mill. The powder obtained was leached by using the aqueous solutions H 2SO 4, H ...

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[PDF] Selective leaching for the recovery of Copper

2021-1-22 · This paper reported on the leaching behavior of printed circuit board (PCB) using a new leaching agent of ammonia-ammonium persulfate, to recover copper. Cu and Zn leaching were found to be fast and reached equilibrium in 6h whereas for Ni, prolonged leaching time was needed. The best leaching efficiency was found to be around 99% Cu, 60% Zn and 9% Ni with 5M ammonia, 0.5M

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Leaching and electrodeposition regularities of metals from ...

Several factors that influence metals leaching and electrodeposition from waste printed circuit boards (WPCBs) powders in slurry electrolysis were studied. The parameters, such as the concentration of CuSO 4 ·5H 2 O, NaCl and H 2 ...

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Leaching of Copper from Metal Powders Mechanically ...

2017-1-20 · the leaching of copper from waste printed circuit boards and had the synergetic effect on copper dissolution. The H2O 2 was the main reagent which made possible the leaching of metallic copper from waste printed circuit boards in acidic chloride solutions.

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Leaching kinetics of copper from waste printed circuit ...

2011-6-1 · Leaching kinetics of copper from waste printed circuit boards by electro-generated chlorine in HCl solution Eun-young Kima, Min-seuk Kimb, Jae-chun Leeb,⁎, Jinki Jeongb, B.D. Pandeyb,c a Dept. Material Science & Engineering, Pennsylvania State University, University Park 16802, PA, United States b Mineral Resources Research Division, Korea Institute of Geoscience & Mineral Resources (KIGAM ...

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Copper Leaching Behavior from Waste Printed Circuit

Copper Leaching Behavior from Waste Printed Circuit Board in Ammoniacal Alkaline Solution Koyama Kazuya , Tanaka Mikiya , Lee Jae-chun MATERIALS TRANSACTIONS 47(7), 1788-1792, 2006

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Copper Sludge from Printed Circuit Board Production ...

2019-12-12 · The fast development of electronic industries and stringent requirement of recycling waste electronics have produced a large amount of metal-containing waste sludge. This study developed a waste-to-resource strategy to beneficially use such metal-containing sludge from the production and recycling processes of printed circuit board (PCBs). To observe the metal incorporation mechanisms

Read More

[PDF] Copper Extraction from the Discarded Printed

This project deals with the experimental results of the leaching of Cu from Printed Circuit Boards (PCB) from obsolete electronic devices by means of leaching using different combinations of acidic mixtures followed by precipitation. Printed circuit boards were dismantled, cut into small pieces, and fed into a Ball mill. The powder obtained was leached by using the aqueous solutions H 2SO 4, H ...

Read More

[PDF] Selective leaching for the recovery of Copper

2021-1-22 · This paper reported on the leaching behavior of printed circuit board (PCB) using a new leaching agent of ammonia-ammonium persulfate, to recover copper. Cu and Zn leaching were found to be fast and reached equilibrium in 6h whereas for Ni, prolonged leaching time was needed. The best leaching efficiency was found to be around 99% Cu, 60% Zn and 9% Ni with 5M ammonia, 0.5M

Read More

Leaching of Copper from Metal Powders Mechanically ...

2017-1-20 · the leaching of copper from waste printed circuit boards and had the synergetic effect on copper dissolution. The H2O 2 was the main reagent which made possible the leaching of metallic copper from waste printed circuit boards in acidic chloride solutions.

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A Comparative Study of Acid Leaching Behavior of

Leaching of copper from the shredded waste printed circuit boards has been studied in nitric and sulfuric acid solutions. Hydrogen peroxide was added as oxidant in the case of sulfuric acid leaching. Effects of parameters such as acid and hydrogen peroxide concentrations, solution temperature, pulp density, and leaching time were investigated.

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SEPARATION OF COPPER FROM A LEACHING

2021-2-5 · The behavior of the metals during the extraction can change if the A/O ratio is modified, even keeping other parameters fixed, such as pH, temperature, and concentration of the extractant. ... Chen, M., Zhang, S., Huang, J., and Chen, H., Lead during the leaching process of copper from waste printed circuit boards by five typical ionic liquid ...

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A critical review on the recycling of copper and

Copper leaching behavior from waste printed circuit board in ammoniacal alkaline solution. Materials Transactions, 2006, 47(7): 1788–1792 DOI: 10.2320/matertrans.47.1788

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Separating and Recovering Pb from Copper-Rich

2019-12-12 · Waste printed circuit boards (WPCBs) are treated by crushing and electrostatic separation to obtain the copper-rich particles. However, the copper-rich particles contain a certain content of solder, which may cause Pb contamination if improperly treated. The separation behaviors of Pb from single solder and solder mixed with Cu particles under vacuum are studied in this work. Due to the ...

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